209968208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{423323}}^1$

素因数の和:423362

約数の個数: 20

約数和(自身を含む): 419937408

約数和(自身を除く): 209969200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 423323, 846646, 1693292, 3386584, 6773168, 13123013, 26246026, 52492052, 104984104, 209968208]

約数ペア:

[(1, 209968208), (2, 104984104), (4, 52492052), (8, 26246026), (16, 13123013), (31, 6773168), (62, 3386584), (124, 1693292), (248, 846646), (496, 423323)]